Application planning
4.1 Types of installation and installation locations
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
138 Manual, 10/2018, L1V30499596002-01
3VA27 molded case circuit breaker - with toggle operating mechanism
Fixed-mounted brea-
✓ ✓ ✓ - ✓ ✓
Withdrawable breaker ✓ ✓ ✓ -
With front mounted
✓ ✓ ✓ - ✓ ✓
With door mounted
✓ ✓ ✓ - ✓ ✓
Interlocks
(mechanical, direct,
✓ ✓ ✓ - ✓ ✓
3VA27 molded case circuit breaker - with stored energy operating mechanism
Fixed mounting incl.
✓ ✓ ✓ - - -
Interlocks (mechani-
✓ ✓ ✓ - - -